ESRI launhced MapIt, a light-weight mapping solution designed to prepare, serve and use geographic data stored in SQL Server 2008 and displayed through SharePoint, Silverlight, or WPF. MapIt allows your users to easily explore the geographic component of your organization's data. Your mapped data can create a powerful visual tool for decision making, exposing trends that might otherwise remain hidden. It uses Bing Maps APIs for visualizing data.” The product includes: A Spatial Data Assistant to help prepare your enterprise data for use in mapping applications ; A Spatial Data Service as a REST gateway to your spatial data in SQL Server ; The ArcGIS API for Microsoft Silverlight/WPF for developing rich interactive map applications ; A SharePoint Web Part that provides an easy-to-use map component for Microsoft SharePoint sites.

More info: ESRI MapIt | MapIt (pdf)